- .380 ACP
Infobox Firearm Cartridge
Yugoslavian "9 mm Kratak" (9 mm Short) cartridges, FMJ.
Colt Manufacturing Company
balsrc= Federal Cartridge [cite web |url=http://www.federalcartridge.com/ballistics/ |title=Federal Cartridge Ballistics |accessdate=2007-09-25 ]
The .380 ACP (Automatic Colt Pistol) (also referred to as the "9 mm Short", "9 mm Browning", "9 mm Kurz", "9 mm Corto" or "9x17mm")
pistolcartridge is a rimless, straight-walled pistol cartridge developed by firearmsdesigner John Browning. It was introduced in 1908 by Colt, and has been a popular self-defensecartridge ever since.
The .380 ACP cartridge was designed for early blowback pistols which lacked a barrel locking mechanism. The locking mechanism that is found on most other pistols is not necessary for the .380 because of the round's low breech pressure when fired. The guide spring is enough to buffer the energy displaced to the slide. This simplifies manufacture of pistols chambered for such a round, generally thereby lowering the cost. It also permits the barrel to be permanently fixed to the frame during firing, which promotes accuracy. There have, however, been a number of locked breech pistols chambered in .380 ACP. There have also been some diminutive
submachine guns, such as the Ingram MAC-11. [cite web |url=http://world.guns.ru/smg/smg22-e.htm |title=Ingram MAC Model 10 / M10 and Model 11 / M11 submachine guns (USA) |accessdate=2007-09-25 ]
The cartridge is
ballisticallysimilar to the slightly hotter 9x18mm Makarovservice pistol cartridge developed in the Soviet Union. [cite web |url=http://www.hipowersandhandguns.com/Comparisonof9x18mmMakarovetc.htm |title=A Comparison of 9x18 mm Makarov, .380 ACP, and .38 Special (2-inch/50-millimetre barrel) |accessdate=2007-09-25 ]
The .380 ACP is compact and light, but short ranged and having marginal
stopping power. [cite web |url=http://www.stevespages.com/page8f380acp.html |title=.380ACP Terminal Ballistics |accessdate=2007-09-25 ] Even so, it remains a popular self-defense cartridge for shooters who want a lightweight pistol with manageable recoil. It is slightly less powerful than a standard-pressure .38 Specialand uses 9 mm(.355 in) bullets. The heaviest bullet that can be safely loaded into the .380 ACP is convert|115|gr|g, though the standard has long been 85, 90 or 95 grains (5.5, 5.8 or 6.2 g). Many consider the .380 ACP to be the minimum cartridge suitable for self defense, while others draw the line at the slightly more powerful .38 Special or at the less powerful .32 ACP. The .380 has had somewhat of a recent upsurge in popularity due to some very compact and lightweight pistols chambered for it.
There are numerous cartridges similar to the .380 ACP such as semi-rimmed
.38 ACP, rebated rim 9mm Nickl, [ [http://www.oldammo.com/september05.htm 9mm Nickl identification] ] the 9mm Ultra, and 9mm Makarov.
*9 mm Kurz
*9 mm Corto
*9 mm Court
*9 mm Short
*9 mm Kratak
*9 mm Browning Short
*9 mm Scurt
9 mm caliber
List of firearms
List of handgun cartridges
* [http://www.coltautos.com/ Colt Automatic Pistols Home Page] ,
Wikimedia Foundation. 2010.